Well, the nature of the business is that I'd really rather not discuss it, but its enough to say that in the heigh-day of the Internet bubble, late 80's/early-90's, there was a lot of Ponzi going on, around the bandwidth providers. If you look at it, the way the Internet was constructed back then is kind of Ponzi, only back then we called it 'over-subscription' ...
I recall a case study about the telecom industry and how it was a race to the bottom laying undersea cables and then the bubble burst. But that assessment was in hindsight.
I guess a distinction needs to be made between a "bubble" which is a part of the market economy, and what can be called a "ponzi scheme" which is malicious from the very beginning.